Just today I got a new motherboard from asrock after my first one had a problem with the pci-e connectors. I reattached everything, but now it will randomly power down abruptly, then reboot shortly after. I've timed it and it seems to take about a half hour of use to cause this to happen. I tried reconnecting almost every cable and all of the psu connectors but it is still restarting. I don't know what to do and id prefer to not have to send the motherboard back again.